#include "math.h"
#include "SPL06.h"
#include "HC_SR04.h"
#include "imu.h"
#include "HC_SR04.h"
extern float SPL_V,SPL_v,SPL_H,HC_SPL;
extern float HK;
extern float V_Z,Altitude,altitude_off,V_HC,move_flag,HC_V;

void Altitude_Read(void);
